On Jan. 10, the state's Site Evaluation Committee said the company's application was incomplete because, among other things, it didn't contain the results of an ongoing study into the effect the turbines would have on birds and bats. The application also didn't detail the effect on historical resources.

The company had 10 days to update the information without resubmitting the entire application. In a letter dated Thursday, the company said it needs more time.

Opponents of the project say it will mar the state's natural beauty and hurt tourism.